setup.sh: fix /etc/sudoers.d permissions
gitlab runs ci jobs with umask 0000 to prevent issues with file permissions. sudo refuses to look at configuration files in /etc/sudoers.d if it is world-writable. Fix these permissions so that sudo still works.
fix-sudoersd-permisions in 1 minute and 2 seconds (queued for 2 seconds)3 jobs for